管道组成件 Piping component
管道附件 piping attachment ; pipe auxiliaries ; pipe accesory
管道元件 piping element ; Pipework components
管道特殊件 Piping Specialty ; piping specialties
管道组件 pipeline component ; lines group
金属管道配件 Pipework of metal
指定管道文件系统 named pipes files system ; NPFS NamedPipesFilesSystem
建筑管道系统和配件 BUILDING SERVICES PIPING
管道文件系统 pipefs
管道元件公称压力 Nominal pressure for pipe components
地下和地上排水和排污用塑料压力管道系统。未增塑聚氯乙烯(PVC - U)。第1部分：管道件和系统规范。
Plastics piping systems for buried and above-ground drainage and sewerage under pressure - Unplasticized poly (vinyl chloride) (PVC-U) - Part 1: specifications for piping components and the system.
负责煤气主管道、阀门及辅件的维修保养。
Be responsible for maintaining gas pipe, valve and other accessories.
负责锅炉房内煤气管道、阀门及辅件的维修保养。
Be responsible for maintaining gas pipe, valve and other accessories in boiler room.
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